Machine for removing surplus material from boots and shoes



Dec. 10, 1929. B. JQRGENSEN v 1,738,584

MACHINE FOR REMOVINGr SURPLUS MATERIAL FROM BOOTS AND SHOES Filed NOV. 30, 1925 and a toe stiffener or toe box.

Patented .ecu l, i929 y Sii BERNHARD@ J'ORGENSEN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNTED SIE-IOE-y MACHINERY CORPORATON, OF PATERSON, JERSEY, A CORPORATION OF NEW JERSEY MACHINE FOR 12E-MOVING SURPLUS MATERAL FROM BOOTS AND Application filed November 30, 1925. Serial No. 72,295.

This invention relates to machines for removing surplus material from boots and shoes. 'The invention is illustrated as embodied in a machine designed to remove from the toe portions ofiunfinished boots or shoes the surplus fmaterial which results from the pulling-over and lasting operations. It is to be understood, however, that machines constructed in accordance with the present invention may be employed for removing surplus material from' other portions of boots and shoes. l Y

The toe portion of a shoe upper usuallyy comprises the leather of the upper, the lining In modern commercial practice the toe box, which is inserted between the upper and liningbefore the toe lasting operation, commonly consists of a layer or layers of felt or woven'fabric impregnated with a mineral wax such asl asphaltum or a. compound'containing such wax. Such a toe box 1s stiff and hard at ordinary temperatures but when moderately heated is plastic and readily conformable byr plication of R. F. McFeely, and in Patent No. 1,633,855, granted June 28, 1927,7011 application Serial No. 694,265, tiled February 2l, 1924i, by R. l). Frye. 1

Objects of this invention are to provide, "without sacrificing any of the advantages of prior machines, an improved organization for performing this Work which will be more effect-ive in operation and convenient for the nperater and which will more effectively dis pose of thewaste material removed from the boots and shoes.

Y A feature of the invention organization comprising a perforated cylindrical abrading` shell closed at onefend and air-exhausting means arranged to draw air from the interior and through the perforaconsists. in an tions of the shell `substantially to the excluv sion of air drawn directly from about the pec riphery of the shell without passingthrough the perforations. :In the illustrated machine the shell is surrounded by a casing hav-s.

ing an opening adjacent to the open end of the shell, anda hollow member, connected withair-exhausting means, is secured to the open endof the casing, the opening in said hollow member corresponding in size to the4 opening in the shell so that the air-exhausting means will draw air from theinterior of the shell rather than directly from the space between the shell and the casing.

@ther features of the invention, consists in an organization comprising a cylindrical abrading shell, a hollow sleeve carrying a disk to support one margin of the shell, a

shaft extending through the sleeve, and meanscarried by the shaft for supporting the opposite margin of the abrading shell. the illustrated machine the means on the shaft for supporting the shell comprises av wheel-like member the hub of which is loosely mounted on the shaft, therim of which supports the margin of the shell, and the spokes of which support the rim andV are' formed as fan blades to assist in dra-wing air through the shell. A scraper having a plurality of blades is mounted on the shaft with its periphery close to the inner facevof the shell'to remove waste material therefrom and the blades of the scraper are preferablyl ar ranged at an angle to the shaft so that4 they also act asair-exhausting means. The arf Inl rangement is such that the sleeve and the shaft, that is, lthe abrading shell and the scraper blades, may be relatively rotated, for

Figjl is a side elevation, partlybrolien' `odying the present away, of a machine em invention, and;V

Fig. 2 is a front elevation, partly in section, of the upper part of the machine.

In the drawing,l the numeral 10 indicates the column upon which are secured bearing posts 12, 14 in which are bushings 16 which form bearings for a sleeve 18. Fitted in the sleeve 18: is a s-haftQO. The shaft 20 is hol-` low and has openings through it to the sleeve .18, oil cups being provided at the ends of the Y vshaft20 to supply the outer surface of the 254,

shaft and inner surface of the sleeve with oil. On one end `the sleeve 18 has a flange 22 to which is secufredby screws-24 a disk 26. The v disk 26 is providedwit-h a flange 28 and has secured to it by screws 30 a detachable rim 32,

30 there being provided between the rim 32 and Y the outer margin ofv theshel-l a Spokeesupf the flange 28 a space' to receive the margin of an abrading shell This shell may be of the type disclosed i-n the patentfor in the apcl'osed in United StatesLetters Patent No. 1;25'6,574, granted Februaryl 19, 1918, on ap.- 'plication of Knowlton and' Scott, orof any other type usually used for this purpose. i

These abrading shells are made of 4sheet, steel and are' provided with abrading projections o n the outer sur-face'an'd have perforations adjacent to theprojections. .To support ported rim 36; or ring is provided having in its innerfacea grooveV to receive the ,outer marginof the shell 34. The spolges 38, which connect therim 36A to a hub, 40, are preferably formed as fan blades to, assist in exhausting airfrom the interior of the shell. The hub 40, has fitted into it, a bushing 42 which rotates freely on the shaftl 2O and is held on the shaft by :a collar 44 secured thereto by'a set-screw 46. Thus the system comprising lthe sleeve 18, the disk 26,"the shell 34, the rim 3,6, the

spokes 38, and the hub 40, rotate together, the

systembeing driven by a pulley 48 secured to the sleeveV 18 and driven by a belt' 50. from. a` vpulley 52 on a counter shaft 54. On the shafty 20 inside the shell 34 is a member 56 having a plurality of scraper `blades V58,v the member beingsplit and clamped upon the shaft 20 by means of screws The blades/58 are arranged at an angle tothe axis ofthe shaft and their outer edges run'in close proximity to the innerface of the shell 34. The angular arplication- 'above referred to orr'of that dis! rangement of the blades 58 enables them to assist in exhausting air from the interior of the exhausting functions, it is rotated in a dircetion opposite to that in which the shell 34 is rotated'. As shown, the shaft 20 has on its outer end'a pulley 62 which is connected by a crossed belt 64 to the pulley 52.

In order to provide a powerful current of air through the shell and effect adequate disposal of the waste material removed by the t shell, af casing 70 is provided surrounding the shell 34 and having an opening 71 in its. front side for the presentation of a shoe to the outer surface yof the shell. Theshell 7 0 has an open end which is iiush with the outer surface off the rim 36. Below the shell casing 70 is a fan casing 72 in which is an exhaust fan 74 driven byv a belt 76 running over a pulley 78 on the shaft 54. The casing 7 2' has i an opening in alinement with the open end of the casing 7 O. A U-shaped, tubular member 80 is pivoted at 82 to the fan casing 72 `so that when' itis swung into vertical position one opening of the member 80 will aline with the opening in the casing 72 and the other opening will aline with tlieopen end of the casing 70. `Preferably the size of this latter opening corresponds substantially to the inner diameter of the rim 36'. The end of the4 member 8O is arranged to be clamped against the end of the casing 70 by means of a screw 84 pivoted at 86 to the easing 70 and disposed between 'lugs 88V formed on theA member 80,

the screw heilig provided' with a thumb nut by means of which the member 8O is firmly clamped against the end of the casing 70, a y

gasket being provided between the member and the casing if desired. Vhen so clamped, the end of the member 80`will be held close to but not quite touching the rim 36. Consei quently, air drawn through the member 80 by the fan`74-will be compelled to come largely from the exterior of the shell 34 through the perforations in it and will pass through the ring 36, its movement being'assisted both by the action of the scraper blades 58 and by the 1 fan-shaped'spokes lVhen it becomes necess-ary'to change the shell 34, the thumb nut 90is loosened and swung-upwardly, releasing the lugs 88. The U-shaped member 8O is then swung down aboutits pivot 82, exposing the open end of they casing 7 0. The set-screw 46 is then loosened and the collar 44 removed. This permits the hub 40 with thel spokes38 to be withdrawn and allows. the shell 34 to be pulled axially from the space between the Y rim 32 and the flange 2.8.. Y

Thek air exhausted by the fan 7 4 passes.` through a pipe 92 tothe exhaust system of the factory, in which'a certain degree of vacuum is maintained.

incassa A branch 94 from the pipe 92 is connected to an opening in the casing 70. By'this arrangement there is a current of air from the outside of the shell 34 through the pipe 94- to carry away any of the removed material which remains outside of the shell, while at the same time va greatly lconceirtrated draft of air is produced through the openings in the shell 34 and through the member 80, to carry away the waste material which passes through the shell. Any of this material which tends to collect on the interior of the shell isscraped or torn loose by the blades and disposed of by the powerful currents of air, as described.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. In a machine of the class described, the combination of a perforated abrading shell closed at one end only,y means for rotating the shell, and air-exhausting means arranged to draw air from the interior of the shell and through the perforations substantially to the .terior of the shell and through its perforations substantially to the exclusion of air drawn directly from the space between the shell and casing. K

3. In a machine of the class described, the combination of a perforated, hollow, abrading shell having an open end, a supporting ring for the open end of the shell, a casing substantially surrounding said shell having an opening in a plane adjacent to the plane of the ring, and air-exhausting means provided with a duct securedto the casing and having its opening in close proximity to the ring.

4. In a machine of the class described, the combination of aperforated,hollow, abrading shell having an open end, a supporting ring ror the open end of the shell, a casing substantially surrounding said shell having an opening ina plane parallel to the plane of the ring, and air-exhausting means provided with a duct secured to the casing and having an opening corresponding in size to the opening in the ring, the end of the duct being in close proximity to the ring. l

5. In a machine of the class described, the combination of a perforated, cylindrical,I abrading shell open at one end, a ring supporting the shell at its open end, a casing partially surrounding said shell, and airexhausting means connected to the casing adjacent to the opening in the ring Aand having'an opening of substantially ,the inner diameter of the ring softhat air will be drawnV through the ring from the interior of the Shell. i v

6. In a machine of the class described, the combination of a perforated, cylindrical, abrading shell open at one end, a easing partially surrounding said shell, air-exhausting means connected to said casing adjacent to the open end of the shell in such manner that air will be drawnmainly from the'interior;l of the shell and through its perforations, andv separate .connections for drawing air directly from the space between the shell and casing.

7. In'a machine of the classdescribed, the combination of a cylindrical abrading shell, a hollow sleeve having a'disk for supporting one' margin of the shell, a rotary shaft extending through said sleeve, means on the shaft mounted for rotation relatively thereto for supporting thepopposite margin of the shell, and means carried by the shaft for exhausting the air within the shell. y

. 8. In a machine of the class described, the

combination of a perforated, hollow, abrado ing shell having an open end, a supporting ring for the open end of the shell, a casing substantially. surrounding said shell' having an opening adjacent to the ring, and airexhausting lmeans provided with a duct securedito the casing, the end of the duct beingin close proximity. to the ring.`

9. In a machine of the class described, the combination of a cylindricalabrading shell, a sleeve, a shaft extending through the sleeve,

meansvvfor rotating the sleeve and shaft, a Y

disk secured to the sleeve, a wheel-like member having its hub supported on the shaft for rotation relatively thereto and corresponding in diameter to the disk, the disk and the rim of the wheel-like member having means to hold the abrading shell thereon, and means carried by the shaft for exhausting the air within the shell. A 1

10. In amachine of the class described, the combination of a sleeve, a shaft extending through the sleeve, means for rotating the sleeve and shaft, a disk secured to the sleeve, and a Wheel-like member having itsvhub rotatably supported `on the shaft and having the same diameterv as the disk, the` opposed faces of theV diskv and the rim of thewheellike member having grooves to receive a 'cylindrical abrading shell. y p

1.1. In a machine of the'class described, the

Y combination of a sleeve having a disk, a shaft 12. In a machine of the class described, the combination of a hollow abrading'shell having an open end, a shaft-extending through said shell, a scraper on said shaft having blades arranged with their ends in close proximit'yl to the interior of the shell, Y and a member for supporting the shell at its open end. Y A Y y Y 13. In a machinevof the class described, the f combination of a liellow abrading Vshell having an open end, a shaft extending throughV said shell, a scraper onsaid shaft having blades ariangedwith theirends in close proximity to the interior of the shell and formed as fan blades for exhausting air through the open end of the shell, and a member lfor supporting the Vshell at its open end comprising y a rim and a plurality of spokes formadas fan blades to augment the blades.

14. i In a machine oi the class described, the combination of a perforated ahrading shell closedl at one end only, means for ret-ating the shell, air-exhausting means 4arranged to draw air from the interior of' the shell-and through action of the scraper vthe perforations substantially to the exclusion of air drawn from about the peripheryvof the shell, and a scraper forr cleaning the interior surface of the shell.

' 15. vIn a machine of the class described, the combination-of a sleeve having a disk, a shaft.

'ing a disk for supportingone margin of the shell, a shaft extending through said sleeve and mountedY for rotation independently thereof, means comprising a spoke supported rim having a hub inounted'on thefshaft lifor supporting the opposite'marginof the shell,`

and means carried by the shaft for removingr waste material from the inner face of the shell. i

K 17. In a machine of the class described, the combination of a perforated, cylindrical,

abrading shell open at one end, aV ring supporting the shell at its open end, a casingy sub- 7 stantially surrounding said shell, air-exhausting means connected to the casing adjacent to the opening in ther ring and having an Aopening of substantially the inner diam-v eter of the ring so that air 'will be drawnl through the ring from the interior of the shell, and supplemental connections to the casinar 'through which air may be drawn directly from aboutthe exterior ofthe shell.

18'. In a machine of the classV described, the

combination of a perforated, hollow, abrading shellv having an open end, a supporting ring for the open end of the shell, a casing partially surroundingr said shellliaving an opening adjacent to the ring, air-exhausting means provided with a duct secured to the casing, the end of the duct being in close proxiinityr to the ring, and other connections .-toi the casing through which air may be drawnsV vfrom the space between the shell andthe casing. i i Y In testimonywhereof I'have signed my name to this specification.

BERNHARDT J ORGENSEN.

lio. 

